<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

</head>

<body>

    <ul id="list">
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
    </ul>

    <script>
        const list = document.getElementById('list')
        /*
            1. 绑定父（祖先）节点事件
            2. 获取事件点击目标节点
        */
        list.onclick = function (e) {
            // console.log(this.innerHTML);
            console.log(e.target.innerHTML);
        }



    </script>

</body>

</html>